Transportation on the frozen Arctic land depends on the use of ice roads.
Rising temperatures are leading to a shortening of ice road transport
seasons and the melting ice roads are creating transportation challenges.
The opening dates for tundra roads in northern Alaska has shifted two
months later from early November (pre-1991) to January (recent years),
dramatically decreasing the potential work period during which ice roads
can be used for transportation. It should be noted that the decrease in
time of tundra travel is not only a function of warming, but also of changes
in regulatory criteria.